255494641 has 2 divisors, whose sum is σ = 255494642. Its totient is φ = 255494640.

The previous prime is 255494639. The next prime is 255494737. The reversal of 255494641 is 146494552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253478241 + 2016400 = 15921^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 255494641 - 2¹ = 255494639 is a prime.

Together with 255494639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 255494594 and 255494603.

It is not a weakly prime, because it can be changed into another prime (255494341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127747320 + 127747321.

It is an arithmetic number, because the mean of its divisors is an integer number (127747321).

Almost surely, 2^255494641 is an apocalyptic number.

It is an amenable number.

255494641 is a deficient number, since it is larger than the sum of its proper divisors (1).

255494641 is an equidigital number, since it uses as much as digits as its factorization.

255494641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 40.

The square root of 255494641 is about 15984.1997297331. The cubic root of 255494641 is about 634.5423291956.

The spelling of 255494641 in words is "two hundred fifty-five million, four hundred ninety-four thousand, six hundred forty-one".